Municipal · Texas · EIA 28978
City of San Marcos - (TX)
Municipal · Texas · 26K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 27 minutes/customer.
Reliability verdict
City of San Marcos - (TX) shows above-average chronic reliability in 2023: 27 minutes SAIDI across 26K customers.
- 27 min
- SAIDI 2023
- 0.19
- SAIFI 2023
- 26K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).
What short-outage City of San Marcos - (TX) filings show
City of San Marcos - (TX) is a municipally-owned utility operating in Texas under EIA identifier 28978. It reports service to approximately 25,723 customer accounts and generated about $0.07 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average City of San Marcos - (TX) customer experienced 26.7 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. The SAIFI figure, which tracks average outage events per customer, came in at 0.19 for the same period, meaning customers statistically saw about 0 distinct interruptions that year.
With 4 consecutive years of EIA data (2020–2023), City of San Marcos - (TX)'s reliability record can be judged on trend rather than one isolated year. SAIDI has improved from 27.6 to 26.7 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
27 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for City of San Marcos - (TX) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
City of San Marcos - (TX) SAIDI trend
City of San Marcos - (TX) vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
27 Among the lowest fewer outage minutes than 92% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where City of San Marcos - (TX) sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, City of San Marcos - (TX) charges more per customer than 54% of them, and is more reliable (lower SAIDI) than 94% of them, placing it in the quadrant where it pays more and is more reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,609/year · Latest SAIDI: 26.7 minutes/year.
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIFI | Customers |
|---|---|---|---|
| 2020 | 27.6 | 0.318 | 25,215 |
| 2021 | 269.5 | 2.244 | 25,482 |
| 2022 | 19.1 | 0.210 | 25,742 |
| 2023 | 26.7 | 0.192 | 25,995 |
Service Area
City of San Marcos - (TX) serves 2 ZIP codes in Texas.
Frequently Asked Questions
How reliable is City of San Marcos - (TX)?
City of San Marcos - (TX) had a SAIDI of 26.7 minutes in 2023. Excluding major weather events, this is below the national average, indicating above-average reliability.
What type of utility is City of San Marcos - (TX)?
City of San Marcos - (TX) is classified as a Municipal serving Texas.
How many customers does City of San Marcos - (TX) serve?
City of San Marcos - (TX) serves approximately 25,723 customers in Texas.
How has City of San Marcos - (TX)'s reliability changed over time?
City of San Marcos - (TX) has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Municipal
- State
- Texas
- Customers
- 25,723
- Annual Revenue
- $0.07B
- EIA ID
- 28978
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for City of San Marcos - (TX). Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (26K here), outside Texas.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (26.7 here), outside Texas, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.